About: http://webisa.webdatacommons.org/135872049

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The aluminum sulfate, or alum solution is separated from the platinum-containing residue by filtration, decantation, or other suitable means.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com